So far I've been using the following:<br><br>For segments:<br>class=motorway|primary|secondary<br>For nodes:<br>class=city|town|village<br><br>I'll document these formally somewhere. As you say, its up to the client tool builders to decide what they support.
<br><br>Etienne<br><br><br><div><span class="gmail_quote">On 3/3/06, <b class="gmail_sendername">Tom Carden</b> <<a href="mailto:tom@tom-carden.co.uk">tom@tom-carden.co.uk</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On 3/3/06, Etienne Cherdlu <<a href="mailto:openstreetmap-L@gj0.net">openstreetmap-L@gj0.net</a>> wrote:<br>> Folks<br>> There's some guidance on the wiki about using labels but nothing very<br>> formalised. There seems to be some consistency in usage for common labels
<br>> (name, class) and a lot of ideas and suggestions for additional tags.<br>><br><br>I think that labelling should be determined by the clients (map<br>rendering code). If you want people to use a particular tag, then
<br>demonstrate the benefit of that tag. (As you have with your road<br>colouring experiments). Having a huge list of suggested tags is of no<br>benefit to this project right now.<br><br>Also, tags/labels do NOT need to be human readable, so long as they
<br>are well specified. Editors can hide the complexity from users and<br>present tools like 'draw motorway' or more generally 'promote/demote<br>line' or 'change class' rather than a text box to type the class.<br>This makes it more likely that useful data will be entered, although
<br>there is probably a good argument for allowing free text input too.<br><br>> Are we at the stage yet where we should be trying to get a version 1.0<br>> ontology for labels? If we could reach consensus on a very small set of
<br>> labels and values then tools could start to rely on the meaning of these tag<br>> values and begin to present a richer experience to OSM users.<br>><br><br>We should use an existing ontology if there is one available. How do
<br>other digital map vendors do it, and is there ontology open/free?<br>IIRC I think someone donated one to Steve recently, but I'm not sure<br>if there were any caveats about its use. Steve?<br><br>> What do people think. Is it too early to try to do this?
<br><br>Yes, almost certainly for 90% of the properties that people will come<br>up with. Let's stick with the basics and get those right first.<br><br>Tom.<br><br>_______________________________________________<br>talk mailing list
<br><a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a><br><a href="http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk">http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk</a><br></blockquote>
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